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ChemWiki: The Dynamic Chemistry Hypertext > Inorganic Chemistry > Molecular Geometry > Virtual: Isomerization > Coordination (Ionization) Isomers

Coordination (Ionization) Isomers

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Virtual Chemistry Experiments require the installation of Java3D to operate properly. Internet Explorer tends to work better than Firefox also. For Windows boxes and for Apple boxes and the rest.

The compounds [Cr(NH3)5(SO4)]Br and [Cr(NH3)5Br]SO4 are examples of coordination isomers. Carefully examine the structures shown below. In this pair of examples, the counter-ions are included in the display. The positions of the counter-ions are fixed relative to the complexes in these displays, but in solution the complex ion and counter-ion move independently of each other.

  1. What is the difference between the two coordination isomers?
  2. Formulate a definition for the term "coordination isomers".
  3. Coordination isomers are sometimes called ionization isomers. Why is ionization isomer a sensible name for this type of isomerization?
pentaamminesulfatochromium(III) bromide pentaamminebromochromium(III) sulfate

             

 

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  • David Blauch (Davidson College)

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Last modified
18:31, 1 Oct 2013

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